SM5950BM

www.DataSheet4U.com SM5950BM Asynchronous Sample Rate Converter OVERVIEW The SM5950BM is a digital audio signal asynchronous sample rate converter LSI. It supports 16/20/24-bit word-length input/output interface data. It also features a built-in digital deemphasis filter and direct mute functions. FEATURES Functions I I I I PINOUT (Top view) I I I I I I I I I I L/R 2-channel (stereo) processing Input sample rate range: 20kHz to 100kHz Output sample rate range: 30kHz to 50kHz Operating sample rate conversion ratio (fso/fsi)*1 : 0.45 to 2.205 selectable *1: fsi = input sample rate fso = output sample rate Asynchronous input and output clock timing System clock input Input system clock: 1fsi (LRCI) Output system clock: 512fso (SCKO input) Deemphasis filter function IIR-type filter fsi = 44.1kHz, 48kHz, 32kHz compatible Direct mute function Through mode operation Direct connection from input to output Output data clocks (LRCO, BCKO) Slave mode: external inputs Master mode: derived from the output system clock (SCKO) Computation round-off processing Normal round-off 5V tolerant input pins for direct connection to 5V operation devices 3.3V single supply Package: 24-pin SSOP LRCI BCKI DI TMOD0 RSTN VDD IISI IMOD0 IMOD1 DEEM FS0 FS1 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 LRCO BCKO DOUT SLAVE SCKO VSS IISO OMOD0 OMOD1 TMOD1 THROU DMUTE PACKAGE DIMENSIONS (Unit: mm) Weight: 0.23g 10.20 ± 0.30 10.05 ± 0.20 + 0.15 − 0.10 0.05 5.40 ...